Latest News
Arctic Sea Ice at Minimum Extent
The U.S. National Ice Center (USNIC) has determined the 2024 minimum Arctic sea ice extent occurred in late-September 2024 with an area of 4.42 million square kilometers based on analysis from the USNIC’s Interactive Multisensor Snow and Ice Mapping System (IMS), used in the Multisensor Analyzed Sea Ice Extent (MASIE) product, jointly created with the National Snow and Ice Data Center (NSIDC).
Icebergs B-22F and B-22G Have Calved from B-22A in the Amundsen Sea
The U.S. National Ice Center (USNIC) has confirmed that icebergs B-22F and B-22G calved from iceberg B-22A in the Amundsen Sea. As of August 15th, B-22A was centered at 72°41' South and 126°14' West and measured 33 nautical miles on its longest axis and 26 nautical miles on its widest axis.
Iceberg A-83 Has Calved From Brunt Ice Shelf
The U.S. National Ice Center (USNIC) has confirmed that icebergs A-83 calved from the Brunt Ice Shelf. As of May 21, A-83 was centered at 75°21' South and 25°29' West and measured 20 nautical miles on its longest axis and 7 nautical miles on its widest axis.
Iceberg A-76N Has Calved from Iceberg A-76B in the Weddell Sea
The U.S. National Ice Center (USNIC) has confirmed that icebergs A-76N calved from iceberg A-76B in the Weddell Sea. As of May 17, A-76N was centered at 63°46' South and 54°02' West and measured 12 nautical miles on its longest axis and four nautical miles on its widest axis. A-76B was centered at 63°23' South and 53°42' West and measured 17 nautical miles on its longest axis and 7 nautical miles on its widest axis.
Iceberg D-33C Has Calved from Iceberg D-33B in the Weddell Sea
The U.S. National Ice Center (USNIC) has confirmed that icebergs D-33C calved from iceberg D-33B in the Weddell Sea. As of April 14, D-33B was centered at 72°28' South and 18°58' West and measured 20 nautical miles on its longest axis and 7 nautical miles on its widest axis. D-33C was centered at 72°27' South and 18°36' West and measured 15 nautical miles on its longest axis and 7 nautical miles on its widest axis.
Arctic Sea Ice at Maximum Extent
The U.S. National Ice Center (USNIC) has determined the 2024 maximum Arctic sea ice extent occurred in mid-March 2024 with an area of 15.14 million square kilometers. This estimate is based on analysis from the USNIC’s Interactive Multisensor Snow and Ice Mapping System (IMS), used in the Multisensor Analyzed Sea Ice Extent (MASIE) product, and is created jointly with the National Snow and Ice Data Center (NSIDC).
Great Lakes Reaches Maximum Ice Coverage for 2023-2024 Season
The U.S. National Ice Center (USNIC) has determined the Great Lakes experienced its annual maximum ice coverage for the 2023-2024 ice season on January 22, 2024. This annual maximum was estimated at 17.68% coverage, which is significantly lower than the average annual maximum of 53%¹ coverage; the 2023-2024 maximum was also observed to occur approximately one month earlier than the annual normal.
Iceberg D-36 Has Calved From the West Ice Shelf
The U.S. National Ice Center (USNIC) has confirmed that iceberg D-36 calved from the West Ice Shelf. As of February 05, D-36 was centered at 66°18' South and 86°37' East and measured 11 nautical miles on its longest axis and 5 nautical miles on its widest axis.
Iceberg D-30C Has Calved from Iceberg D-30A in the Weddell Sea
The U.S. National Ice Center (USNIC) has confirmed that iceberg D-30C calved from iceberg D-30A in the Weddell Sea. As of February 02, D-30A was centered at 53°16' South and 36°04' West and measured 23 nautical miles on its longest axis and 9 nautical miles on its widest axis. D-30C was centered at 54°04' South and 35°30' West and measured 13 nautical miles on its longest axis and 6 nautical miles on its widest axis.
Iceberg D-35 Has Calved From Borchgrevink Ice Shelf
The U.S. National Ice Center (USNIC) has confirmed that iceberg D-35 calved from Borchgrevink Ice Shelf. As of January 08, D-35 was centered at 70°01' South and 21°37' East and measured 29 nautical miles on its longest axis and 6 nautical miles on its widest axis.
Iceberg A-82 Has Calved From George VI Ice Shelf
The U.S. National Ice Center (USNIC) has confirmed that iceberg A-82 calved from the George VI ice shelf. As of December 12, A-82 was centered at 72°51' South and 72°24' West and measured 12 nautical miles on its longest axis and 6 nautical miles on its widest axis.
Iceberg D-34 Has Calved From West Ice Shelf
The U.S. National Ice Center (USNIC) has confirmed that iceberg D-34 calved from the West Ice Shelf. As of October 19, D-34 was centered at 67°11' South and 82°7' East and measured 11 nautical miles on its longest axis and 8 nautical miles on its widest axis.
Featured Products
Antarctic Ice Shelf
Antarctic ice shelf has been updated to the 2022 version and is available in GIS shapefile format.
Regional Synopsis
The U.S. National Ice Center has developed a new series charts. Regional Synopsis charts breaks out each region of the Arctic and Antarctic into a high quality regional charts along with an environment synopsis write-up. Charts will be updated weekly. Please take a look.
Animated Charts
Added animated charts of our Arctic and Antarctic MIZ, and IMS snow and ice charts.
Trivariate Products
A comprehensive look at ice conditions over a period time, from a single year to a comparison set starting from 2007. Produced for the Arctic and Antarctic.
